Mercurial up to 3.7.2 git ext:: URL input validation

CVSS Meta Temp Score
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CTI Interest Score
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8.6$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Mercurial up to 3.7.2. Affected is an unknown function of the component git ext:: URL Handler. This manipulation causes input validation. This vulnerability is registered as CVE-2016-3068. Remote exploitation of the attack is possible. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Mercurial up to 3.7.2 and classified as critical. Affected by this vulnerability is an unknown code of the component git ext:: URL Handler. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Mercurial before 3.7.3 allows remote attackers to execute arbitrary code via a crafted git ext:: URL when cloning a subrepository.

The weakness was published 04/13/2016 (Website). The advisory is shared at debian.org. This vulnerability is known as CVE-2016-3068 since 03/09/2016. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 90370 (Debian DSA-3542-1 : mercurial - security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 157172 (Oracle Enterprise Linux Security Update for mercurial (ELSA-2016-0706)).

Upgrading to version 3.7.3 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (90370) and SecurityFocus (BID 85733†). Similar entries are available at VDB-82346 and VDB-82347. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.6

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 90370
Nessus Name: Debian DSA-3542-1 : mercurial - security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 14611
OpenVAS Name: Amazon Linux Local Check: alas-2016-697
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Mercurial 3.7.3

Timelineinfo

03/09/2016 🔍
03/29/2016 +19 days 🔍
04/05/2016 +7 days 🔍
04/07/2016 +2 days 🔍
04/13/2016 +6 days 🔍
04/13/2016 +0 days 🔍
04/14/2016 +1 days 🔍
07/24/2022 +2292 days 🔍

Sourcesinfo

Advisory: RHSA-2016:0706
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-3068 (🔍)
GCVE (CVE): GCVE-0-2016-3068
GCVE (VulDB): GCVE-100-82345

OVAL: 🔍

SecurityFocus: 85733 - Mercurial 'mercurial/subrepo.py' Arbitrary Code Execution Vulnerability

See also: 🔍

Entryinfo

Created: 04/14/2016 10:01
Updated: 07/24/2022 14:07
Changes: 04/14/2016 10:01 (45), 10/06/2018 11:19 (32), 07/24/2022 14:07 (3)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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